/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 * */

// AmzServer - Tototoy's server model.
// Author: tonyjobmails@gmail.com (tonyhack).
//
// Define class CompressInterface.
//
// CompressInterface gives public method of compress.
//

#ifndef __COMPRESS__INTERFACE__H
#define __COMPRESS__INTERFACE__H

#include "common.h"

namespace amz {

enum CompressType {
  COMPRESS_TYPE_NULL = 0,

  COMPRESS_TYPE_MAX,
};

class CompressInterface {
 public:
  virtual ~CompressInterface() {}

  virtual uint32 GetType() = 0;

  // Calculate the least size of import size after compressing.
  virtual int CalculateCompressSize(int import_size) = 0;
  virtual int CalculateUncompressSize(int import_size) = 0;

  // Compress/Uncompress data.
  // Return the size after compressing.
  virtual int Compress(const char *in, int size, char *out, int max_size) = 0;
  virtual int Uncompress(const char *in, int size, char *out, int max_size) = 0;
};

}  // namespace amz

#endif  // __COMPRESS__INTERFACE__H
